11 citations
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November 2019 in “The FASEB Journal” A mutation in the MAP2 gene causes reduced hair follicle density, leading to hairlessness.
9 citations
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January 1975 in “PubMed” Nude mice are hairless due to a shared defect affecting both skin and thymus, not just thymic issues.
9 citations
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February 2002 in “PubMed” A new gene mutation causes hereditary coproporphyria with reduced enzyme activity.
January 2011 in “대한피부과학회지” A 7-year-old girl was diagnosed with trichothiodystrophy due to low sulfur levels in her hair.
1 citations
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May 2017 in “Journal of The American Academy of Dermatology” People with alopecia areata often have lower vitamin D levels than healthy people.
August 2016 in “Journal of the American Academy of Dermatology” The infant likely has Hay-Wells syndrome and needs genetic testing and heart screening.
47 citations
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February 1998 in “Journal of bone and mineral research” A specific gene mutation causes vitamin D-resistant rickets and hair loss.
7 citations
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March 2003 in “PubMed” The scalp has a natural speckled pattern of increased pigment around hair follicles, possibly linked to local hormone production.
July 2024 in “Journal of Investigative Dermatology” Machine learning can use blood tests to help predict moderate-to-severe alopecia areata.
February 2024 in “BMC genomics” The TRPV3 gene variant may cause the long-haired suri alpaca coat.
4 citations
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March 2025 in “Pediatric Dermatology” Pediatric alopecia areata needs more research to understand its characteristics and related conditions.
14 citations
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January 2010 in “Dermatology” Some people with congenital triangular alopecia have a central tuft of hair in the bald patch, but the cause is unknown.
4 citations
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July 2025 in “Frontiers in Immunology” Early intervention with JAK inhibitors may prevent alopecia areata progression.
7 citations
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July 2020 in “Immunological Investigations” The rs231775 genetic variant is linked to a higher risk and severity of Alopecia Areata in males.
4 citations
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November 2018 in “JAAD case reports” Alopecia areata can sometimes appear as a straight line of hair loss instead of round patches.
143 citations
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January 2007 in “The American Journal of Human Genetics” Certain genes on chromosomes 6, 10, 16, and 18 may increase the risk of alopecia areata.
2 citations
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May 2011 in “International Journal of Dermatology” A 12-year-old boy in rural south India had a rare skin condition causing hair loss and inability to sweat.
10 citations
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May 1986 in “Experientia” Too much zinc in the diet can cause hair loss and color change in young mice by reducing copper in the body.
January 2024 in “SAGE Open Medical Case Reports” The brothers have congenital ichthyosis, and the older brother's eye issues are due to different genetic mutations.
18 citations
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January 1992 in “Dermatology” A 4-year-old girl has a rare condition causing hairlessness and skin bumps, but normal teeth and sweating.
January 2025 in “Mansoura Medical Journal” Age and androgen levels significantly affect meibomian gland structure and function.
23 citations
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September 1957 in “Archives of Dermatology” Alkaline phosphatase activity decreases in early alopecia areata.
54 citations
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December 2011 in “American Journal Of Pathology” A Gsdma3 mutation causes hair loss due to stem cell damage from skin inflammation.
11 citations
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May 2011 in “World Journal of Pediatrics” The document emphasizes the importance of correctly identifying and classifying genetic hair disorders to help diagnose related health conditions.
33 citations
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October 2005 in “Journal of Investigative Dermatology” A specific gene mutation causes sparse, brittle hair in a family.
A white-tailed deer fawn in South Dakota was the first cervid found with congenital hypotrichosis, a condition causing sparse or missing hair.
January 2023 in “International Journal of Zoological Investigations” Certain genetic variations in IL-16 may increase the risk of alopecia areata.
June 2001 in “European Journal of Dermatology” A 54-year-old woman experienced progressive hair loss starting in adolescence, leading to sparse scalp hair and almost no eyebrows or eyelashes.
June 2023 in “Pediatric investigation” A boy's scalp infection, usually found on the body, was effectively treated with antifungal cream.
4 citations
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October 2011 in “International Journal of Dermatology” Bardet-Biedl syndrome may include under-recognized skin problems related to its metabolic disturbances.